Rolling-mill.



H. ST'TING.

l ROLLING MILL. APPLIOATION FILED SEPT. 28. 1997. 91 6,052.

nErNmcnsT'rme, WITTEN, GERMANY.

ROLLING-MILL.

Speeircaiion of Letters Patent.

Application med September 28, 1907. Serial No. 8945942.

To all whom tt may comme:

Be it known'that'l, HEINRICH Sr'rme, a subject of the GennanEmperor, and residing at Witten-on-thefRuhr, Germany, have inventedA certain new and useful Im rovements in Rolling-Mills, of which the ollowing is a specification.

This invention relates to certain improvements in rolling mills such as are articularly designed and adapted for emp oyment in rolling or reducing metal rods, pipes and the like, and the object oi" the invention is to provide a device of this general character having means of a novel and improved nature for supporting the rod or being P11111@ rolled adjacent to each pair of ro s of the train whereby, when either pair of such rolls is shifted to throw its reducin pass out of operative osition for aoco modating the mill to di erent cross sectional forms of Athe rod or pipe to be rolled, the corresponding supporting means may be readily and conveniently adjusted in position for supporting engagement with such rod or pipe to prevent damage due to sagging or bending of the same.

The invention. consists in certain novel' features of the construction, and combinations and arrangements of the several parts of the improved rolling mill whereby certain important advantagesare attained, and the device is rendered simpler, less expensive and otherwise better lada ted and more convenentlor use, all as wil be hereinafter fully set ort One embodiment vof my improvements is shown in the accompanying drawings, wherem Figure 1 is a plan view showing a rolling vmill constructed according to my invention;`

Fig. 2 is a sectionalview tal/ren vertically and transversely through' the rolling mill constructed as shown in Fig. 1 and showing one adjustment of the passes thereof, and Fi 3 is a view similar to Fig. 2, but illustrating another adjustment of the passes. i

Asshown in these views the improved rolling mill is constructed with a base or frame 1 from which two series of bearing portions or projections 2 and 3 are extended, the bearing portions `2 of one series alternating between those ofthe other series, and being extended from thebase-or frame 1 in directions at right angles to such other series of bearing portions as clearly shown in Figs. 2 and 3 of the drawings.

Each of the bearmg portions 2, 2 is extended laterally` or horizontally from the base or frame 1 and carries a pair of spaced shafts 4, 4 mounted to turn and vertically extended parallel with each other, and at the under side of each such bearing portion 2, the corresponding shafts .4, 4 are provided with gearingas shown at 6. For driving them in unison with each other nel.. .any suitable source of power, while the opposite upper ends of said shafts 4, 4 are arranged to pro-- ject above the upper side of such bearing portion 2, as shown at 7, 7 in position to reeeive a pair of rolls 8, 8 having grooves adapted for registryto produce two passes 1U and 11, one above the other, the said rolls 8, Sibeing 'carried in a yoke 9 which is capable of vertical movement in such a manner as to cause said rolls to slide vertically along the projecting upper end portions 7, 7 of the respective shafts without interference with the drlving connection between Asaid shafts and ro s.

.Each of thebearing portions 3, 3 is extended vertically upward from the base or frame `1 and carries a pair of parallel s aeed shafts 5, 5 mounted to turn and exten ed horizontally, and at the side of -the base o posite to the bearing portions 2, 2 the said s afts 5, 5 have gearing as shown at 6 for driving them in unison with each other from any suitable source of power, while the opposite ends of said shaft 5, 5 are arranged to project beyond the o posite side of the base 1 as shown at 7, 7 t e said projectinglends 7 7 of said shafts being directed at rig t angles to the corresponding portions 7, 7 of theshafts .4, 4 and being arranged to receivea pair or rolls 8, 8 having grooves adapted for registry to produce two passes 10 and 11, the said rolls 8, 8 being also carried in a yoke 9 which is capable of horizontal movement in such a manner as to cause the said rolls to slide horizontally upon the rojectin end portions 7, 7 ofthe correspon ing sha ts 5, without interfering Patented mmh 2a, 190e.

with the driving connection between said base adjacent to each bearing ortion 2 and 3 'with arms 14, 14 ca parallel with the shafts at su bearings, and said rods have their extremities' provided sheaves or drums 15whereon chains 17 are a apted to bewo'und, said chains having detachableconnections .with the yokes 9 as indicated'at 18,. The

sheaves or drums 15 as herein shown are adapted to be turned b means of one gearing as indicated at 16 on t e drawings in such a Amanner'as to cause the chains 17 to be wound upon said sheaves or drums, whereby the yokes 9, 9 connected with the chains are moved and the rolls carried thereby are adjusted lengthwise along the corresponding shafts 4 and 5.

As shown in Fig. 1, the improved rolling mill has a train comprising seven pairs or sets of rolls, marked, respectively, a, b, c, d, e, f and g upon the drawing, each air of rolls or sets being provided, as above escribed, with two passes 10 and 11, and in the use of the mill, one or the other of said passes 10 and 11 at each pair or set of rolls is adapted to be alined with other passes at the other several pairs or sets of rolls comprised in the train, in such a manner as to receive and effectively support the rod'or other article being rolled atsuch close intervals as may be necessary to prevent undue sagging or strain thereon between the successive passes of the train, the structure and arrangement of the rolls 8, their okes, and the means for adjusting the same, being such as to facilitate the adjustment of either pass 10 or 11 at each pair or set of rolls in or out of the path of the rod or other article being rolled or reduced as may be desired.

One pass, as 10, at each pair or set of rolls comprised in the train, is a reducing pass, and the reducin passes 10, 10, at the several pairs of rolls a, c, d, e, f and g com rised in the train, are made in gradually essening diameters from one end of the mill to the other, so that the several reducing passes may operate in a well known way to successively reduce the rod or other articleto be rolled until the desired iinal cross sectional form is imparted thereto, and the construction and arrangement of the parts is such that when one or more of the pairs or sets of rolls adjacent to the delivery end of the Atrain are adjusted to throw their reducing passes 10 out of alinement `with the path of the rod or other article passing through the initial passes of the train, the rolls so adjusted are caused to stand in such position that the rod coming from the preceding reducing passes can pass Without interference the rolls which have been so adjusted from their reducing position. In Fig. 1 I have shown the rolls at d, e, f and g so adjusted as to throw their reducing passes out of alinement with the corresponding passes of the rolls at a, b

and c, so that the final diameter of the rod or other article to be rolled will be determined by the diameter of the last reducing pass (that at.c)through which such article is drawn. The other asses 11,- 11 at the several pairs or sets of ro and g comprised in the train, are of equal diameter, beintgl at least equal to the diameter of the initi reducing pass 10 of the rolls at i1/,and the arrangement of the parts is such vthat when either pair or set of the rolls is adjusted in the manner above set forth, to throw its' reducin pass 10 out of alinement with the path of the rod or other article to be rolled through the mill, the pass 11 of that pair or .set o rolls is automaticallyadjusted in the path of such rod or other article in such a manner as to afford an effective support for such rod or other article to be rolled, so as to prevent sagging or bending thereof upon the emergence of such rod from the last reducing pass of the train. In the position of the parts shown in Fig. 1, wherein the rolls at d, e, f and gare adjusted to throw their reducing assesl l0 out of alinement with the path of t e rod to be rolled, it will be seen that the larger supporting passes 11, 11 of the rolls are automatically moved in alinement with the path of the rod so. as to effectively support the same and prevent bending or sagging beyond the last reducing pass at c.

The improved` rolling mill constructed according to my invention is of a simple and inexpensive nature and is particularly Well adapted for use by reason of the fact that it permits of effectively supportin the article passes are thrown out of operation in an extremely simple and convenient manner without requiring the removal and replacement of the rolls at such points.

Having thus described my invention, what I claim and desire to secure by Letters Patent is-- 1. A rolling mill having a train comprisin rolls arranged in a plurality of pairs, eac having a reducin pass and a supporting pass, each pair of ro s being adjustable to aline one or the other of said passes with the path of an article to be rolled, the reducing passes being of radually lessening diameters from one end o the trainto the other, andthe su porting passes being each at least equal in diameter to the initial reducing pass of the train.

2. VIn a rolling mill, a train having rolls arranged in a plurality of sets, each set of rolls having a reducing pass and non-reducing supporting means, and being adjustable to aline either said reducin pass or said supporting means with the path of an article to be rolled.

3. In a rolling mill, a train having rolls arranged in a plurality of sets, each set of rolls having a reducing pass adjustable in and out of alinement with the path of anarticle to be rod or other rolled, the reducing passes being of gradually lessening diameters from one end of the train to the other, and non-reducing supporting means at each set of rolls and normally out of the path of the article to be rolled and adapted, when such rolls are adjusted to throw their reducing asses out of the path of the article to be rol ed, to be positioned in the path of said article for supporting .enga ement therewith.

n testimony whereof, I aflix my' signature in the presence of two Witnesses.

HEINRICH STUTING. LL. s.] Witnesses:

WM. WASHINGTON BRUNSWICK, R. SCHMIDT. 

